CODLING MOTH IN NOKTHWESTEKN PENNSYLVANIA. 



103 



In 1908 the band-record experiments were carried out at Westfield, 

 N. Y.j in an unsprayed orchard consisting of large apple trees belong- 

 ing to Mr. George Walker and kindly placed at the disposal of the 

 Bureau of Entomology. The bands were examined once a week, and 



Fig. 26.— Band-record curve of 1907, at North East, Pa. (Original.) 



the larvse were counted and removed to the laboratory for further 

 observations. As is evident from figure 27, the bands were placed on 

 the trees about one week too late, so that no record was obtained of 

 the earliest maturing larvse. The two broods are here clearly dis- 



Fig. 27.— Band-record curves of 1908, at Westfieid, N. Y. (Original.) 



tinguishable, overlapping but slightly at the end of August. The 

 great drop in the number of larvaa in early October (fig. 27) was due 

 to cold weather. In Table XXXIX is given the full record of the band 

 collections for 1908, with a summary in Table XL. 



30490°— Bull. 80—12 8 



